DR. TAMAS OTROK (M.D.) – Gastroenterology Physician, NPI 1851386734
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
369 GASTROENTEROLOGY in CO
Provider Addresses for DR. TAMAS OTROK (M.D.)
382, South Arthur Avenue, Colorado Tech Center, Louisville, Boulder County, Colorado, 80027, United States
LOUISVILLE, CO 800273094
Phone: (303) 604-5000
Fax: (720) 890-0364
Type: Mailing
1551 PROFESSIONAL LN UNIT 290
LONGMONT, CO 805016970
Phone: (303) 604-5000
Fax: (720) 890-0364
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 202 Open Payments records for all available years, with a total value of $4,793.
Total Amount is formed as General ($4,793) + Research ($0) + Ownership ($0) = $4,793.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: ABBVIE INC. ($1,372).
Total Amount
$4,793
General + Research + Ownership
Payments
202
Total payment records
General Amount
$4,793
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $1,372 |
| Takeda Pharmaceuticals U.S.A., Inc. | $707 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $323 |
| Janssen Biotech, Inc. | $276 |
| Lilly USA, LLC | $251 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2015-10-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20151028001396 | I | Gastroenterology | CO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 104 | 104 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 82 | 82 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 55 | 55 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 49 | $0 |
| 99153 | Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 44 | 38 | $0 |
Insurance plans in this area (ZIP 80027)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | CO | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 25 | 25 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Gastroenterology | CO | |
| Physician Assistant | VA | |
| Physician Assistant | CO | |
| G A S T R O E N T E R O L O G Y | IL | |
| - | CO | |
| G A S T R O E N T E R O L O G Y | PA | |
| Gastroenterology, Internal Medicine | CO | |
| Physician Assistant | CO | |
| G A S T R O E N T E R O L O G Y | CO | |
| G A S T R O E N T E R O L O G Y | CO |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.